I didn't see a factor for altitude. Have to derate your abilities when there is less air to breathe.

1000' elevation gain in 1/2 hr I've only achieved in the negative direction here in Colorado. More like 45 minutes (fresh and light load) to 1 hr with a real pack.

2 mph on trail and 1000' gain per hour has been my thumbrule for 20 years.

Have been down to 0.5 mph or less offtrail with pack.


Comment- Vinegar Joe Stilwell's troops weren't in good shape. Many had to cut the seats out of their pants so they could keep going with dysentary. Hopefully this is not a valid comparison to what ETS-ers are contemplating.